| Search found 67 matches on edaboard.com: cst probe cst probe probe feed cst probe feed in cst model probe fed patch antenna cst |
surface wave bandgap characterization of ebg structures
hiin order to find the surface wave bandgap of periodic structure, the best method is to find the dispersion diagram of periodic structure using unit cell and eigen mode solver in cst.i am just wondering does anybody successfully find the surface wav...
Electromagnetic Design and Simulation :: 05 Nov 2009 20:49 :: prafuldeo :: Replies: 6 :: Views: 525
mesh properties in cst (number of mesh cells)
hiiplz tell me how can i analyze that how much no. of mesh cell is best for my structure and these mesh setting will provide good result in cst???...
Electromagnetic Design and Simulation :: 03 Nov 2009 10:23 :: ravi8331 :: Replies: 2 :: Views: 138
how to improve return loss of microstrip patch antenna
hi,i have build a model in cst mws, and when solve it by transient time solver the s11 plot that i get not good that is the return loss is around 10db only, so anybody can help by giving some suggestions on which dimension that i should modify so tha...
RF, Microwave, Antennas and Optics :: 19 Oct 2009 6:31 :: kgec :: Replies: 4 :: Views: 387
reflection phase of pbg structure
hi all, i am simulating a hexagonal structure (attached here) for the reflection phase diagram which was given previously in this forum. i am taking the steps as in http://www.edaboard.com/ftopic304618.html is given. after running the macro, i fo...
Electromagnetic Design and Simulation :: 19 Sep 2009 8:30 :: Element7k :: Replies: 1 :: Views: 165
50 ohm coaxial probe in fdtd
hiiplz tell me how can a define and create 50 ohm coaxial probe for exciting the antenna in fdtd???????plz tell me the exact alogorithm for creating cylinder in matlab.i tried for defining cylindrical object in matlab but i dont where is the problem....
Electromagnetic Design and Simulation :: 11 Sep 2009 12:41 :: aaea3 :: Replies: 3 :: Views: 228
fss in cst mw studio
hi i am simulating fss in cst mw studio. first i am using the example discussed in pdf document frequency selective surfaces by remsky in which we have an annular ring on a dielectric substrate . they have simulated it with hfss and got minimum tr...
Electromagnetic Design and Simulation :: 21 Aug 2009 9:45 :: prafuldeo :: Replies: 13 :: Views: 1384
cst mws boundary conditions problem?
hi everybody,im new to this forum and also new to cst microwave studio. just finish constructed a structure of an l-probe patch antenna (from ieee paper) and just run the simulation by transient time solver, the curve of the return loss(s11) against ...
Electromagnetic Design and Simulation :: 06 Jul 2009 13:31 :: winsonwhy :: Replies: 14 :: Views: 841
h f s s vs c s t
t on this topic?which is one is better. ive experience in h f s s and found that it is pretty slow and memory hungury. for a circuit with two plannar inductors, it takes on more than 1gb memory. does cst offer anything better?...
Electromagnetic Design and Simulation :: 05 Jul 2009 11:03 :: shazdek0ch0l0 :: Replies: 140 :: Views: 30871
reflection phase diagram of pec and pmc in cst
hello friends,i am working with ebg designs and need to find reflection phase diagram for the same. i am using cst studio suite 2008 (mws) for my simulations. i am using two methods for finding the reflection phase diagram of ebg:a) using macro and p...
Electromagnetic Design and Simulation :: 02 Jul 2009 21:42 :: SAJ25 :: Replies: 36 :: Views: 2841
plane wave and probe in cst
in cst 2007, does anyone know how to adjust the position (height) of the plane wave. when i set the plane wave and the probe, by default they are all at the same height from the analyzed structure. adjusting the height of the probe, the height of the...
RF, Microwave, Antennas and Optics :: 09 Jun 2009 17:51 :: thephuong07 :: Replies: 0 :: Views: 117
hfss, ie3d,cts,xfdtd tutotorials
hello everybody!im a begginer in designing antennas and im a self taught. where can i find tutorial about hfss, xfdtd, ie3d or cst microwaves because i want to learn how to use them.thanks to you all...
RF, Microwave, Antennas and Optics :: 30 May 2009 5:13 :: research scholar :: Replies: 21 :: Views: 5703
help with a cavity and patch simulation with cst, please!
hi everybody,i am trying to simulate a patch fed by a cavity with a slot on it (find atached the picture).the resonant frecuency is 9.6 ghz.i am using cst transient solver since i also need the farfields. the result i am getting for the s parameters ...
Electromagnetic Design and Simulation :: 05 May 2009 15:52 :: aalvarez :: Replies: 2 :: Views: 237
using cst for shielding - problem in getting correct results
hi guysi recently started using cst microwave 2008. i used it first for se of a box wit a plane wave and installed a waveguide 1 cm. i am facing problem in getting some correct results i used a probe inside. creating a seam shows no difference, idont...
Electromagnetic Design and Simulation :: 30 Apr 2009 16:47 :: waseem44 :: Replies: 0 :: Views: 108
cst convergence problem
hi, recently i am doing the simulation of patch antenna by using cst. but when i using the waveguide port for coaxial cable, there are some convergence problems arising:the cst time-domain solver shows me the messege: the calcuation seems to be unsta...
Electromagnetic Design and Simulation :: 30 Apr 2009 16:46 :: waseem44 :: Replies: 7 :: Views: 771
radiation efficiency in cst
hi, i have simulated a simple probe fed circular patch antenna using cst on two different substrate - fr4 and r03010. the resonant frequency (s11) results look fine with both having resonant frequency around 867mhz. but, i notice that the radiation e...
Electromagnetic Design and Simulation :: 27 Apr 2009 16:33 :: zhiweisim :: Replies: 0 :: Views: 258
probe feed in cst ?????????????????
in the port modes what should be the mode type (tem,quasi tem, tm) for probe feed microstrip antenna ????????????????????...
RF, Microwave, Antennas and Optics :: 20 Apr 2009 11:03 :: praveen kokkirala :: Replies: 2 :: Views: 294
phd thesis suggestions
hi everybody. i need a suggestion. im working on my phd with fractal antennas as a topic. until now i have been working on sierpinsky carpet antenna analysis and ive got some interesting results. i have done what was possible but it is not enough for...
RF, Microwave, Antennas and Optics :: 20 Apr 2009 3:56 :: kpahwa2002 :: Replies: 12 :: Views: 1854
question about modelling ebg to get the reflection phase
hello im now trying to get the reflection phase properties of ebg stuctures with cstunfortunately, i have no idea about the first step--------the modelling .the main problems are : 1 which solver to choose? (the model is only one unit cell with pe...
Electromagnetic Design and Simulation :: 11 Mar 2009 1:55 :: maxkun :: Replies: 0 :: Views: 129
how to model a probe fed patch antenna using cst
hi, i am currently working on a project which i need to design a probe-fed type circular patch antenna using cst mws (please see the attachment). i am trying to simulate the s11 parameter of the patch antenna but i do not know how to model the coaxia...
RF, Microwave, Antennas and Optics :: 27 Feb 2009 16:32 :: shahid78 :: Replies: 15 :: Views: 1065
simulation of radiated emission
dear sirs,i am hardware designer and im having a problem with radiated emission from multilayer pcb. can i use cst or mentor tools for simulate and resolve this kind of emc problem? in the past i used these software for microwave circuits design, but...
Professional Hardware and Electronics Design :: 16 Feb 2009 17:18 :: pcbdesigner34 :: Replies: 6 :: Views: 546
430-470mhz, 6dbi patch antenna?
gain and large bw)center frequency:450mhz,band width,435-465mhzbeam width:80 deg typvswr:<1.3gain:6 dbf/b ratio:>13dbsize:aprox 30*33*4.5cm(w*d*h)regarding the probe-fed, my deigns in hfss and cst do not match with the measrements. any sample ...
RF, Microwave, Antennas and Optics :: 16 Feb 2009 13:30 :: myebook :: Replies: 12 :: Views: 813
hfss & cst vs. measurement results
i have attached the measurement result of a line-fed patch antenna and also the hfss and cst files of that antenna. the results are quite different. anybody can help to find the reason?...
RF, Microwave, Antennas and Optics :: 09 Feb 2009 15:03 :: myebook :: Replies: 7 :: Views: 456
cst probe-fed antenna evaluation
i have modeled one probe-fed antenna, but the result is not according to the measurement! any idea?...
Electromagnetic Design and Simulation :: 09 Feb 2009 14:57 :: myebook :: Replies: 0 :: Views: 162
microstrip antenna simulation - cst and ads issue
hello all, im student and doing project . i using cst and ads i have problem programs,i dont know wrong setting and i create microstrip antenna simulation and test a both unlike i have structure antenna fig 1http://www.youpica.com/images/475_drawing2...
RF, Microwave, Antennas and Optics :: 28 Dec 2008 22:45 :: Aya2002 :: Replies: 3 :: Views: 378
current excited in the patch antennas due to plane wave
hii am using cst mws and interested in plotting the graph which shows the magnitude and phase of current excited in the patch antenna as a function of simulated frequency range when plane wave is incident on it.any comments would be greatly apprecia...
Electromagnetic Design and Simulation :: 11 Nov 2008 15:10 :: shahid78 :: Replies: 7 :: Views: 336
<cst mws> a periodic structure+plane wave problems
hello all,im simulating a periodic 2d planar structure. i am using a plane wave excitation to achieve the phase of the reflection coefficient.as youll see in the following pictures, i have used only one cell of the structure with periodic bundary con...
Electromagnetic Design and Simulation :: 19 Oct 2008 0:51 :: shahid78 :: Replies: 28 :: Views: 2465
hfss solution frequency - is higher always more accurate?
hello everyone,i have a question regarding hfss. i am designing a quad-band stacked patch antenna. i have resonances of 4, 5, 6, and 6.5 ghz. so far, i have set a solution frequency of 10 ghz in thinking that this would achieve a more refined mesh...
Electromagnetic Design and Simulation :: 08 Oct 2008 11:05 :: drasko :: Replies: 17 :: Views: 789
double ridged waveguide help (pretty well documented :)
hi everybody. excuse my english, i speak spanish. im doing my thesis project. introductionit consist of a low noise amplifier, for the band 10.7 to 13.3 ghz. i use a transistor to get a gain of 12 db with a noise figure no more than 1 db for the band...
RF, Microwave, Antennas and Optics :: 12 Aug 2008 13:29 :: biff44 :: Replies: 3 :: Views: 387
cst design studio
hi all,help required in cst .while integrating cst design studio with cst microwave studio how to define ports.i have an antenna which is having a port (connected between 2 points). while calling the same in design studio , it comes with only 1 pin. ...
RF, Microwave, Antennas and Optics :: 16 Jul 2008 8:55 :: GVVIN :: Replies: 2 :: Views: 291
[cst] how can i use probe for detecting?
hi guys, i wanna use periodic boundary but i dont know much about probe detecting. seems that a probe can only detect the signal on one point. but i need the sum of the signal on a surface. i dont know how to do it without set a waveguide port. so ...
Electromagnetic Design and Simulation :: 05 Jul 2008 18:36 :: smithjim :: Replies: 2 :: Views: 156
reflection phase diagram of ebg/pbg surface using cst
i am trying to find the bandgap of ebg structure using reflection phase diagram method. i am using cst mws 2006b.i model the unit cell of the ebg strucuture and then illuminate it with the plane wave and set up the probe to record the phase of the re...
Electromagnetic Design and Simulation :: 06 May 2008 13:59 :: prafuldeo :: Replies: 20 :: Views: 1062
absorption diagram
hi,i would like to calculate the absoprtion diagram of a ground plane in first for next use the method for another structure.im working with cst microwave studio 2008.i have a plane wave at z=13mm and a probe a z=12mm.------------ plane wave ...
RF, Microwave, Antennas and Optics :: 01 Apr 2008 17:24 :: piboo :: Replies: 0 :: Views: 216
how i plot field in any position in cst?
hi all,i have little question of csthow can i polt the field of any antenna at any position(not near field nor far field)i make horn and put probe in my desired postion ,so how can i measure field i(i.e. how could i rotate the probe to measure the fi...
Electromagnetic Design and Simulation :: 16 Feb 2008 13:54 :: mpero :: Replies: 1 :: Views: 174
how to export the data about time and fields in cst?
i have question here. how to export the data of the relation about field and time, after simulation with thansient solver in cst? only i can get is the relation about fields and position....
Electromagnetic Design and Simulation :: 05 Feb 2008 17:59 :: mpero :: Replies: 3 :: Views: 135
port impedance
i am simulating patch antenna with probe fed .i calculated the dimension of feeding coax for 50 ohm impedance using built in macro in cst mws and then use those dimensions in modeling.however after simulation when i check the the port impedance it d...
Electromagnetic Design and Simulation :: 24 Nov 2007 20:54 :: snkhan :: Replies: 3 :: Views: 297
anyone know about cst how to plot the electric field in time
hi all friend, anyone know about cst how to plot the electric field in time domain.due to i have generate monitor electric field already but how can i make the plot electric field in time domain.thanks and regards,vincent:|:|:|:|:|:|:|...
Electromagnetic Design and Simulation :: 27 Aug 2007 6:55 :: lonalpha :: Replies: 2 :: Views: 165
how simulates probe sma connector in ads?
dear all,i would like to design patch antenna with sma connector from the ground plane.how can we simulate the sma connector using momentum?btw. it is could be understood using hfss or cst.thanks in advance...
RF, Microwave, Antennas and Optics :: 18 Jul 2007 8:32 :: Manjunatha_hv :: Replies: 6 :: Views: 948
[cst]a probe fed patch antenna
attched is a very simple patch antenna model in cst.actually the model maybe incorrectly constructed because of at least three abnormal results.1. the resonant frequency is not around 1ghz since the width is 30mm and the permitivity of the substrate ...
Electromagnetic Design and Simulation :: 24 Jun 2007 8:42 :: bbvv :: Replies: 3 :: Views: 333
add e-filed probe in hfss
how to add field probe in hfss as cst?...
Electromagnetic Design and Simulation :: 05 Jun 2007 14:26 :: gliet :: Replies: 3 :: Views: 397
why my hspice(in linux) can not generate wave files?(help!!)
i installed hspice_2005_03 in redhat9.0 .the hspice can run. but it can not generate the files,such as *.sw*,*.tr*,*.ac*. so i can not observe the waves with cscope.there is the *.lis file:using: /home/cs/synopsys/hspice/linux/hspiceincorrectly built...
Analog IC Design & Layout :: 01 Jun 2007 11:10 :: RickLi :: Replies: 6 :: Views: 567
cst mws - pba mesher cannot handle sheet bodies
i am designing a probe-fed hollow dielectric resonator antenna with a metallized cavity (using zero thickness for the pec) in cst 2006. the transient solver warns that the pba mesher cannot handle sheet bodies. they will be ignored in the simulation....
Electromagnetic Design and Simulation :: 26 Feb 2007 4:07 :: DrunkBear :: Replies: 1 :: Views: 207
problem about simulation dielectric resonator with cst
i have a problem about the simulation.i have simlated a dielectric resonator with eigenmode solver,and now i want know the resonance frequency under a wave incliding !i have established a mode ,but i dont know right or not!help me!...
Electromagnetic Design and Simulation :: 03 Dec 2006 20:26 :: plasma :: Replies: 10 :: Views: 444
e-field probe issues (cst mws)
hello all,my problem regards e-field probe signal results under different mesh settings.i have an antenna model with an e-field probe set in its far-field region.in my opinion the antenna is well meshed, i.e. the mesh sees all the important parts.as ...
Electromagnetic Design and Simulation :: 24 Nov 2006 7:28 :: RFSimulator :: Replies: 5 :: Views: 327
semcad, cst, xfdtd, feko or ie3d for uwb simulation?
hello,i am trying to simulate two vivaldi antennas (one tx and the other is rx). i am sending a uwb pulse from one of them and receiving it from the other antenna.i have been doing this using cst, but it takes somehow long time, specially if the two ...
Electromagnetic Design and Simulation :: 09 Nov 2006 11:25 :: Manjunatha_hv :: Replies: 8 :: Views: 1116
conformal antennas wit hfss
hi, i would like to simulate conformal anetnnas with hfss. is it possible and how to do ?thank you in advance...
RF, Microwave, Antennas and Optics :: 24 Aug 2006 12:40 :: bbvv :: Replies: 9 :: Views: 816
near field to far field calculation in mws cst
help is needed for calculation from near field to far field in mws cst.in simulation, forgot to put the far field probe in some positions, the simulation is very time consuming. does mws cst support this kind of calculation to users?thank you and reg...
Electromagnetic Design and Simulation :: 21 Aug 2006 7:07 :: irfan1 :: Replies: 7 :: Views: 1026
cst-induced field! i need an answer please!!!
hi everybody!i have the following situation: a sphere illuminated by a plane wave. when i choose a probe inside of the sphere i get the total electric field, right?if i choose a monitor field, of electric type, lets assume at 2.45 ghz, i get the indu...
Electromagnetic Design and Simulation :: 21 Aug 2006 5:40 :: aaron412 :: Replies: 2 :: Views: 213
cst and circular polarization
hello. ive got a problem. i need to design a dielectric slab in a conical horn antenna for cicular polarization. i use cst, but i dont know how to see the result. how can i see in cst if the polarizator works? axial ratio must be 1 for circular pola...
RF, Microwave, Antennas and Optics :: 13 Jun 2006 22:26 :: Lupin :: Replies: 11 :: Views: 669
how to define the length of coax feed for antenna in cst?
i am simulating a mono antenna feed by coaxial line, and find that different length of coax line will lead to different s11 parameters. what length on earth should be? i have no idea to find the principle, can anyone help me? thanks very much!...
Electromagnetic Design and Simulation :: 11 Apr 2006 13:11 :: ryfnjust :: Replies: 4 :: Views: 537
cst excitation signal!!!!
hello,i dont understand the semnification of the excitation signal in cst: when i excite a structure with a plane wave, in the excitation sėgnal there is a value of 1, what it means? then for example, i get in a probe a value lets say 5 v/m. thanks t...
Electromagnetic Design and Simulation :: 05 Apr 2006 18:10 :: adel_48 :: Replies: 2 :: Views: 348
antenna transmission calculation
putting any e-field farfield probe into an cst simulation one gets the probe resultsfor this probe in the 1d-results tree. my question now is not really depending on the simulation tool.how can i calculate s2,1 from the |p|db measured at the farfield...
RF, Microwave, Antennas and Optics :: 10 Mar 2006 11:07 :: Schubkarren :: Replies: 0 :: Views: 153
cst mws resonant structure
hello,i work with cst mws and i simulate (transient solver) a high resonant structure (a split ring) in the ghz region, where i dont know the exact resonant frequency. i placed a magnet field probe in the middle of the ring.the structure will be exci...
Electromagnetic Design and Simulation :: 23 Dec 2005 15:09 :: irfan1 :: Replies: 5 :: Views: 402
cst:impedance of ms antenna
hii want to know how can i measure the impedance of a microstrip antenna.the problem is :with a microstrip line if i feed the antenna i dont know its input impedance. and for the feed line i will need to design it for a certain impedance. now there w...
Electromagnetic Design and Simulation :: 13 Nov 2005 7:57 :: Pushhead :: Replies: 3 :: Views: 333
ADS
:: :: :: Replies: :: Views:
heeeeeeeeelp cst!!!
hi!in time domain it is possible to use probes to get the signal (e-field, h-field) into one point. how can i get the signal into one point in frequency domain?thx to all!maybe this time someone can realy give me an advice????????????...
Electromagnetic Design and Simulation :: 03 Nov 2005 17:15 :: hapciu :: Replies: 2 :: Views: 207
cst - input current
ut current. i have created a closed rectangular loop around the center conductor and added h-field monitors, hoping to integrate the curve (results->evaluate curve) based on amphere law and compute i.cst mws returns an error message unable to determi...
Electromagnetic Design and Simulation :: 29 Mar 2005 18:36 :: wajih :: Replies: 0 :: Views: 267
patch antenna design
hi, i am designing a patch antenna for a substrate that is just 2 mils thick. i have used the patch antenna design procedure given in balanis. i am using feko for antenna simulation and the antenna is probe fed. but the s11 that i get is -3db, which...
RF, Microwave, Antennas and Optics :: 15 Mar 2005 0:17 :: flatulent :: Replies: 4 :: Views: 474
absorber modeling in cst
hello all,im trying to simulate the performance of absorbing structures (mostly pyramids).to calculate the absorbers reflectivity i compare the reflected field at a point with that reflected by a metal plate of the same size.the points position depen...
Electromagnetic Design and Simulation :: 26 Feb 2005 23:35 :: plasma :: Replies: 3 :: Views: 351
evanescent microwave probe stripline simulation
does anyone have experience and/or suggestions with the criticalparameters for designing an evanescent microwave probe(using stripline) and how one determines its performanceusing simulation tools. i am currently using mws, but i read that maybe anal...
Electromagnetic Design and Simulation :: 17 Jan 2005 16:47 :: loucy :: Replies: 5 :: Views: 1119
conformal microstrip antenna
i am trying to use hfss and cst to modal a comformal microstrip antenna mounted on a cylinder substrate. i intended to use a coxial probeas excitation. i wonder how i can draw it out....
Electromagnetic Design and Simulation :: 21 Sep 2004 2:24 :: mwhero :: Replies: 2 :: Views: 888
far field probe in cst
we can get any specified position e,h filed conponents. but in hfss, can i get the e,h field at specified position(far field)? best regards...
Electromagnetic Design and Simulation :: 01 Sep 2004 9:48 :: asdfaaa :: Replies: 0 :: Views: 321
em simulation packages list
i see here a lot of questions about how is better for what. anyway, here is a list of em simulators, check them and we may then have a better discussion aboutem.http://directory.google.com/top/science/physics/electromagnetism/software/urs, murti...
Electromagnetic Design and Simulation :: 02 Jul 2004 11:09 :: flyhigh :: Replies: 15 :: Views: 900
inputs needed about fdtd based em simulators
hi all, this is a sequel to my earlier post on fdtd based em simulators.i need info about two fdtd based simulators.1) zealands fidelity2) remcoms xfdtdwe are evaluating imsts empire and i am not impressed with the features and also the edit...
Electromagnetic Design and Simulation :: 07 Jun 2004 13:56 :: mamali :: Replies: 4 :: Views: 609
any info on c$t mws 5.0 new features?
thanks in advance.regards....
Electromagnetic Design and Simulation :: 22 Apr 2004 4:05 :: borich_03 :: Replies: 45 :: Views: 6548
2.5d simulator accuracy
i just finished a microstrip balun design and simulated it in m/w/o/(2.5d) and h/f/s/s (3d). the results were similar but not exactly the same. which got me thinking. in you experience, which 2.5d simulator results most closely matched your lab me...
Electromagnetic Design and Simulation :: 08 Dec 2003 14:41 :: Redi :: Replies: 42 :: Views: 7966
probe feed in hfss 9
hi,how can i realize probe feed for the patch antenna? do i have to draw the coaxial cable feeding the patch? if so, how long it should be?another problem is what type of excitation use in this case? and what boundary conditions i should use for simu...
Electromagnetic Design and Simulation :: 02 Dec 2003 14:10 :: Redi :: Replies: 16 :: Views: 2764
rectangular waveguide to n-type coaxial connector
deat all,im trying to simulate a rectangular waveguide to n-type coaxial connection in cst at 2.45ghz. does anybody have any type of informationthat could possibly help me model this transition?thanx in advancevagee...
Electromagnetic Design and Simulation :: 08 Jul 2003 11:34 :: eirp :: Replies: 3 :: Views: 1625
discuss of conformal antennas
the conformal antennas has widely used . but it is difficult in anlysis compared with plannar antennas.i have intrested in it. can discuss in here with someone ? and share with our oppinions and results? thanks!...
RF, Microwave, Antennas and Optics :: 29 May 2003 0:53 :: plasma :: Replies: 5 :: Views: 822
All times are GMT + 1 Hour |
|
